#0D174F#0D174F

#0D174F is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.103 H 269.0°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#0D174F
RGB	rgb(13, 23, 79)
HSL	hsl(231, 72%, 18%)
HSV	hsv(231, 84%, 31%)
CMYK	cmyk(83.5%, 70.9%, 0%, 69%)
CIE-LAB	lab(11.01, 18.87, -35.56)
CIE-LCH	lch(11.01, 40.25, 297.95°)
OKLab	oklab(24.03% -0.0018 -0.1029)
OKLCH	oklch(24.03% 0.103 269)
XYZ	xyz(1.8832, 1.2627, 7.5401)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D174F #4F450D

analogous

#0D384F #0D174F #240D4F

triadic

#0D174F #4F0D17 #174F0D

tetradic

#0D174F #4F0D38 #4F450D #0D4F24

square

#0D174F #4F0D38 #4F450D #0D4F24

split-complementary

#0D174F #4F240D #384F0D

monochromatic

#04081A #04081A #0D174F #162684 #1E36B8

Accessibility & contrast

On white

16.77

#0D174F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0D174F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D174F

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D174F	#FFFFFF	#000000	##FFFFFF
##0D174F	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002151

Deuteranopia (green-blind)

#001A4E

Tritanopia (blue-blind)

#002630

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0d174f;
/* rgb */ color: rgb(13, 23, 79);
/* oklch */ color: oklch(24.0% 0.103 269.0);

Tailwind

colors: {
  custom: {
    50: '#585381',
    500: '#0d174f',
    950: '#000000',
  },
}

SCSS

$custom: #0d174f;
$custom-light: #585381;
$custom-dark: #000000;

JSON

{
  "hex": "#0d174f",
  "rgb": {
    "r": 13,
    "g": 23,
    "b": 79
  },
  "hsl": {
    "h": 230.909,
    "s": 71.739,
    "l": 18.039
  },
  "oklch": {
    "l": 0.24032,
    "c": 0.10288,
    "h": 269
  },
  "luminance": 0.01263
}

Semantic roles & 50–950 ramp

primary

#0D174F

secondary

#8A7C2E

accent

#D339EE

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0D174F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →